Sandown is a seaside resort town on the south-east coast of the Isle of Wight, England.

Sandown may also refer to:

• Sandown, New Hampshire, a town in the United States
• Sandown, Gauteng, a suburb of Johannesburg, South Africa
• Sandown Park Racecourse, a racecourse in Esher, Surrey
• Sandown, Kent
  • Sandown Castle, Kent in Deal, Kent
• Sandown Racecourse, a racecourse in Melbourne, Australia
• Sandown Raceway, a motor racing circuit in Melbourne, Australia
  • Sandown 500, the signature event at Sandown Raceway
• Sandown, one of at least two merchant vessels by that name
• HMS Sandown, one of at least three British naval vessels by that name
  • Sandown class minehunter, a class of minehunter ships of the Royal Navy